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0460000769

James Watt's (1736-1819) prototype steam engine 'Old Bess' c1778. In this engine, which was erected at the Soho works, Birmingham, England, in 1777-1778, reciprocating motion was turned into rotary motion by a sun-and-planet gear train. From 'Lives of Boulton and Watt', Samuel Smiles, (London, 1861). Engraving.

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0460000769.jpg
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Irish Photo Archive
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James Watt's (1736-1819) prototype steam engine 'Old Bess' c1778.  In this engine, which was erected at the Soho works, Birmingham, England, in 1777-1778,  reciprocating motion was turned into rotary motion by a sun-and-planet gear train. From 'Lives of Boulton and Watt', Samuel Smiles, (London, 1861). Engraving.